Consider the following pairs of instruments with what they measure:

  1. Bolometer→ Electromagnetic radiation
  2. Pycnometer→ Fluid Density
  3. Ellipsometer→ Refractive Index

Which of the above is/are correct?

Answer: [D] 1, 2 & 3

All given pairs are correctly matched

This question is a part of GKToday's Integrated IAS General Studies Module